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DPG

Düsseldorf 2007 – scientific programme

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A: Fachverband Atomphysik

A 14: Poster I - Ultra-cold atoms, ions and BEC

A 14.2: Poster

Tuesday, March 20, 2007, 16:30–18:30, Poster B

Rydberg atom in a Bose-Einstein condensate — •Stephan Middelkamp1, Peter Schmelcher1,2, and Igor Lesanovsky31Theoretische Chemie, Institut für Physikalische Chemie, Universität Heidelberg, INF 229, D-69120 Heidelberg, Germany — 2Physikalisches Institut, Universität Heidelberg, Philosophenweg 12, D-69120 Heidelberg, Germany — 3Institute of Electronic Structure and Laser, Foundation for Research and Technology Hellas, P.O. Box 1527, GR-71110 Heraklion, Greece

We present a new method of determening characteristic paramenters of a Bose-Einstein condensate via spectroscopy of the electronic excitation levels of one of the condensate's atoms. We calculated the energy levels of a Rydberg atom embedded in a Bose-Einstein condensate for different trapping potentials. These energy levels depend on characteristic parameters of the Bose-Einstein condensate. Therefore one can gain information about the Bose-Einstein condensate by determening the electronic excitation levels of the Rydberg atom via spectroscopy.

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